Содержание
- 2. Properties Under ordinary conditions iodine is solid black-grey with violet metallic luster substance. It is slightly
- 3. Being in nature Due to its chemical active iodine doesn`t occur in nature in a free
- 4. History In 1811 Courtois first found iodine in ash of seaweed. In 1813 -1814 Gay-Lussac proved
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